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Multiplication tables (7 ч 50 мин, 18 ноя 2018 г. – 20 ч 53 мин, 30 июл 2019 г.)

Описание:

Until the 1960s, complicated computations were done with the help of mathematical tables.

Добавлено на ленту времени:

Counting/Caculating Inventions

4 ноя 2019

0

0

360

Дата:

7 ч 50 мин, 18 ноя 2018 г.

20 ч 53 мин, 30 июл 2019 г.

~ 8 months

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